HT4759 I can not install app's from the app store on my phone,and when i try, i get a message tells me (cannot connect to itunes store) that happened after i updated it to "IOS6" . it's a "IPhone4 S"

Question

I can not install app's from the app store on my phone,and when i try, i get a message tells me (cannot connect to itunes store) that happened after i updated it to "IOS6" . it's a "IPhone4 S"

Answer 1

Remember, any purchased item from the itunes store is forever associated with the Apple ID used to buy it.  So when you get prompted for an ID/password and it doesn't accept it, then you are using the wrong ID.
Go to Settings>iTunes and App Stores, be sure it's logged into the ID you have set on the iphone (since that one seems to be connecting with the right ID).  If you've done this, then you might wait a bit to see if the "cannot connect to .. store" message has to do with internet connections.